Proof EV-1789920886390-9867

Sealed and intact

Files unchanged since they were sealed on 20 September 2026, 16:14 UTC.

Sealed on
20 September 2026, 16:14 UTC
Area
near Argenteuilwithin ~11 km
Contents
one photo

Capture signals: strong How is it set?

Checks: 3 verified ↓

Establishes the origin and integrity of the capture. Not that the scene is true. What this page establishes

Sealed files

Media 1 of proof EV-1789920886390-9867 Intact

Photo · file 1

SHA-256 67ed565b…d2cbad10

Recapture analysis Partial analysis. Some of the measurements are not available on the device that took this photo. The measurements available found nothing.
Received a file? Check that it is the one that was sealed.

The file stays on your device: its fingerprint is computed in your browser.

SHA-256 fingerprints of the sealed files

  • Photo · file 1 67ed565bc423056684d3b3fdd186b1a10be0937203abf560e7d7f7efd2cbad10

With your own tools: sha256sum your-file (macOS: shasum -a 256 your-file), then compare the result with this list.

Checks 3 verified

You do not have to take Evidiq’s word for it. The signature, the timestamp and the file itself can be checked with tools we do not own.

  • Device and app

    Verified

    The device and the app were attested at capture time.

    Check it yourself

    The attestation was obtained by the app at capture time, then sealed with it. Google and Apple do not allow the token to be re-checked afterwards: its result is recorded in the original’s manifest and in the developer data.

  • File integrity

    Verified

    Every file carries an intact content signature, checked just now, and matches its sealed fingerprint.

    Signed by Evidiq Production Signing

    Check it yourself

    This link does not include the original file

    The author chose to share this proof without its original file, so the checks shown above were carried out by Evidiq. To verify it yourself with independent tools, ask the author for a link that includes the file.

  • Sealing date

    Verified

    The timestamp is written into the Bitcoin blockchain. It verifies publicly, without Evidiq.

    Check it yourself

    Recomputing consistency in your browser requires JavaScript.

    Bitcoin timestamp

    This proof’s fingerprint is recorded in the Bitcoin blockchain via OpenTimestamps. Anyone can check, without Evidiq, that it existed at the time of the block.

    Download the proof (.ots) View the block opentimestamps.org

    The .ots file ties this proof’s Merkle root to a Bitcoin block; it reads with the OpenTimestamps tools, without going through us.

Keep this verification

Download the proof dossier (PDF) Raw data for developers (JSON)

The proof dossier carries the verifiable pieces. It stays verifiable even if this link is withdrawn.

Page viewed on 11 October 2026 at 09:36 UTC. The sender can withdraw this link at any time.

Technical details
Reference
EV-1789920886390-9867
Sealed on
20 September 2026, 16:14:56 UTC
Area
near Argenteuil · ≈ 49.0, 2.2
approximate display; the exact position lives in the original file and its C2PA manifest
Approximate map of the capture zone, rounded (~11 km) to protect privacy
Signer
Evidiq Production Signing · ECDSA P-256 certificate
issued by Evidiq Production Root CA
View the trust list
Capture
Evidiq app (Android) · attested device (Google Play Integrity)
Sealed index
100 (a value included in the anchored fingerprint, needed to recompute the inclusion)
Photo · media 1
SHA-256 fingerprint 67ed565bc423056684d3b3fdd186b1a10be0937203abf560e7d7f7efd2cbad10
C2PA signature intact
Bitcoin anchoring
Anchored · block 967859
View the block Download the proof (.ots)

Checks executed when this page loaded, on 11 October 2026 at 09:35 UTC.

What this page establishes

Establishes

  • The files have not changed since they were sealed.
  • They existed no later than the date attested by the independent timestamp.
  • They were captured with the Evidiq app on an attested device.
  • The capture area was recorded, within ~11 km.

Does not establish

  • That the scene is real: a photo taken of a screen or a print is still a genuine capture of a fake scene.
  • The identity of the person who captured it.
  • The legal weight of the proof, which is for a court to judge.

What these checks do not cover The recapture analysis shown above is a measurement we perform and report to you. Unlike the signature, the timestamp and the file fingerprint, it is neither signed nor sealed: you cannot recompute it yourself, and nothing proves to you that it has not changed since. It may also be revised as our measurements improve.